Lister-planter



. Feb. 25, 1.936. s.fB. HENDilcKs A1. 2,031,650y

LI STER PLANTER Filed April 20, 1934 3 `Sheets-Sheet 1 F1a-3. l

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ATTORNEY Feb. 25, 1936 s. B. HENDRlcKs Er Al. 2,031,650

LISTER PLANTER y ,F11 pril zo, 1954 s sheets-sheet 2 IN V EN TORSATTORNEY '51Min/v B. Hmm/ans Vl BY dof/N M. MARK/5L Patented Feb. 25,1936.

lUNITED STATES PATENT OFFICE LISTER-PLANTER Simeon B. Hendricks and JohnM. Markel. Rockford, Ill., assignor to J. I. Case Company, Racine, Wis.,a corporation Application Api-u zo, 1934, serial No. '121,511

Claims. (Cl. 111-68) 5 considerable Atime is saved as well. as labor inperforming the twooperations during one movementof the machinery throughthe eld, which commonly requires at least two implements, each of whichperforms its own service, and therefore, increased expense of labor,fuel and otherwise occurs. Said improvements .include means forautomatically clutching or declutching the drive shaft for the seedermechanism when the plow parts are either in operative or inoperativecondition, andv which means are so arranged that no\ manual adjustmentis required when the plow bottoms are operated in different depths;'also, means are provided whereby the main drive wheel which operates theseeder actuating mechanism will have constant traction when theimplement traverses extremely rough or furrowed elds; also, a plowclutch entirely closed and operating in oil; and further improvements inthe detail construction and operation of such an implement will beapparent from the following disclosure:

In the accompanying drawings, forming part hereof, Figure 1 is a planview of an implement embodying our improvements; Fig. 2, a sideelevation as seen when looking in the direction of the arrows 2 2 inFig. 1; Fig. 3, a detail section taken on the ldotted lines 3 3 in Fig.1; Fig. 4, a perspective as seen from the front of the implement whenlooking toward the left side thereof showing various elements employedin partly disf assembled position, the wheel being omitted; Figs.

5 and 6, side elevations showing the improved linkage arrangement lforthe master or bull wheel; Fig. 'l an enlarged sectional detail on thedotted line 1 1 in Fig. 4 showing the construction of the seeder shaftclutch; Fig. 8, a side elevation taken on the dotted line 2 2 in Fig. 1showing the plows in non-operating or transport position;

Fig. 9, an enlarged fragmentary sectional view of an intermittent clutchand cam mechanism employed with the master wheel; Fig. 10, a detailsectional view on the` dotted line |0 |0 in Fig. 9 showing the relativeposition of elements forming part of the clutch shown in Fig. 9; andFigs. 11 and 12 are fragmentary details of the cam and linkage when theplows are in inoperative and operative positions respectively asindicated in Figs. 8 and 2.

In said drawings the numerals 5, 6, indicate the frame members of thelister, to the undersides of which we secure beamsx1, each of whichcarries a plow 8, and extending rearwardly from the beams are brackets 9supporting planting devices I0, II. At the rearend of each bracket 9 anarm I2 is mounted, at I3, for supporting a pair of conventional coveringdisks I4, constantly urged into the ground by a spring I5 connected atits upper end to bracket 9, as shown in Fig. 2. A .drawbar 5', as usual,is supported by the frame 5, 6, and which extends forwardly of theimplement, its outer end provided with means for attachment to atractor. Also extending rearwardly from frame member 6 are brackets I6for supporting seedhoppers I1 having conduits I1 leading to thedistributor I0, the usual rotary mechanisms in which hoppers are'actuated by gears I8, I9, Fig. 1, through the shaft 20, chain system 2l,22, and master drive wheel 23, the construction and `operation of all ofwhich mechanisms are well known in the art.

Elach carrying wheel 23, 24 respectively, 4operates in conjunction withan intermittent clutch 23 and 24 of well known construction, adapted foruse with plows, clutch 24' being controlled by a linkage 25 and rope 26connected thereto, and clutch 23' is likewise controlled by a similarlinkage 21 and rope 28, which ropes, Fig. 1, are within convenient reachof an operator on the tractor (not shown) who may actuate eitherclutchindependently or simultaneously by pulling on the appropriate rope orropes as desired. Said clutches and wheels are mounted on crank axles29, 29',

' pivotally secured in suitable supports, Fig. 1, on

the rear frame member 8, the axle 29 preferably in the form of a collarhaving a forward projection thereon having a`,stop 29" adapted tocontact frame 6 as axle 29 is turning for limiting the distance whichwheel 23 may move in a downward direction.

Clutch 23' includes a housing member 30 attached to axle 29 by clampbolts 3|, Fig. 4, or otherwise, said housing member having a bearing 32in which a clutch-shaft 33 is journalled and terminates in a crank 34 atits inner end connected at 35 to an adjustable link comprising members38, 31, as shown in Fig. 4, theimem ber 31 embodying a slot 38 inl whichthe end 39 of an adjusting bell-crank 40 is mounted. Said bell crank isjournalled in a suitable bracket 4I on beam 1 and also in the brace 42.The inner end of said bell crank 40 is connected to a lever 43 includingthe usual detent pin 44 and notched quadrant 45, Figs. 1, 2, and 8. Atthe upper part of housing 30 a bearing 46 is provided in which isjournalled a stub-shaft 41lhaving an arm 48 supoprting a roller 49 forcontrolling the mounted as shown at 54, 55, Fig. 9, said fingers beingconnected by a link 56 having a spring 56' attached thereto and to cam 5I, which spring `causes roller 51 to move into engagement with notches58 when the`roller 49 is removed from the path of finger 52. The clutchengaging roller 51 is mounted on finger 53 for engaging notches 58 onthe inner side of flange 59 of the drum 68 which drum has a hub 6|extending outwardly to form a shaft for a sprocket 62 and drive wheel23, said three units 23, 62, and 59 as a whole rotating aboutclutch-shaft 33. In order to form a housing for containing lubricant andto also exclude foreign matter from the clutch and cam mechanisms weprovide the member 38 preferably embodying a groove 6| which registerswith a ring 62' in housing member 38', the two housing members beingsecured by bolts 63, and an oil seal l64 being inserted between housingmember 38 andhub 6| as is commonly'employed for such purpose.

The seeder drive mechanism is controlled by a clutch comprising in partashaft 65, Figs. 4 and '7, on which shaft is mounted a sleeve 66 havinga flanged head 61 and at its opposite end clutch teeth 61' of anydesired shape, and upon said sleeve is a clutch throwout 68, one end ofwhich bears against the flange 61 and its opposite cam end 69 engagingcam teeth 69 forming part of bearing 18 secured to crank axle 29 by abracket, as 1|. A sprocket 12 is loosely keyed to sleeve 66 and retainedin position by abutting bearing 18 and hub of sprocket 13, which latteris idly mounted on shaft 65 and embodies integrally formed clutch teethengaging the clutch teeth 61' of sleeve 66, said sprocket 13 being heldon shaft 65 by a washer and a pin 14 or other- ,wise as desired, asindicated in Fig. '1. 'I'he sleeve member 66 is constantly urged towardsprocket 13 by a spring 15, as will further appear. The clutch throwout68 includes an arm 68' to which a link 16 is attached and at its lowerend is connected to a lever 11 forming part of arm 18 having a camroller 19 at its end, which roller is held in contact with cam 5| by aspring 88 attached to housing 30 and the lever 11, as indicated in Fig.4. p

The general arrangement of clutch 24', wheel 24 and associated parts isthe same as the opposite clutch `and wheel except that no vcam or chaindrive mechanisms are Aassociated .therewith, and therefore specidescription of these parts is deemed unnecessa In some operatingconditions a center truck is employed in connection with the listerimplement, as indicatedA in Fig. 1, the present tnuck-- comprising atransverse shaft 83 supported in bearings 84, 85, on the members ofdrawbar 5 the ends of which shaft terminate in crank axles 81 forsupporting truck wheels 88. Approximately at the middle of thetransverse portion of said shaft arms 89, Fig. 3, are secured, which attheir upper ends support a trunnion 98 for guiding a link 9| having aspring 92 at its forward end and a stub collar 98 behind the trunnion,the rear end of the link 9| being connected to an adjacent lever 93 on abeam 1 and cooper- Aating with the usual notched quadrant for theimplement when listing hillside ridges will be avoided.

A lister planter is commonly employed for simultaneously breaking orsplitting the ridges. produced by fall plowing and planting and coveringthe deposited seed, the implement being drawn throughethe field usuallyby a tractor, and while thus travelling the carrying wheel 23 rotatesthe sprockets 62, 13, through their connection by the chain 22, theplows 8 having been set to penetrate the land at the desired depth byadjustment of the levers 43. As the operator is transporting theimplement to the field, or when turning corners at the ends of rows, theplows and associated parts have been positioned clear of the land asindicated in Fig. 8, the cam 5| and associated parts occupying therelation shown in Fig. 11, which positioning has caused the leyer 68' ofthe clutch throwout 68 to be pulled forwardly so that the cam teeth 69ride upwardly on cam teeth 69 of bearing 18, which action forces thethrowout member against flange 61 and lconsequently urges sleeve 66against pressure of spring 15, thus causing clutch teeth 61 of thesleeve'to be disengaged from similar teeth of sprocket 13, which permitsthe latter sprocket to rotate without imparting rotation to sprocket 12,as will be understood. It will be noted, Fig. 8, that crank 34 of clutchshaft 33 is in upward position and is so held -by roller 49 engaging arecess 49 in clutch plate 58.

When about to begin operation, the levers 43 are adjusted to positionthe plows in the required vdepth penetration, and as the equipment ismoving the operator slightly pulls the ropes 26, 28, which forceactuates linkages 25 and 21 to move the rollers 49 from the recesses 49'and beyond the path of the endof finger 52, causing spring 56 to pull onlink 56,` this action permitting Ithe clutch roller ,51 to engage one ofthe notches 58 Within the clutch drum 68, indicated in faint lines inFig. 9. 'Ihis operation locks the'hub 6I, to which the drive wheel 23 isattached, Ato the shaft 33 and causes it to turn therewith approximatelyone-half revolution, or until recesses 58' move toward roller 59, whichintercepts finger 53 and disengages roller 51 from clutch notches 58vthe proper l( epth, for example, as shown in Fig. 2.

During action it will be understood that the a 34 is moving in adownward position. As the pl rws 8 with otherdevic'es are graduallylowered -ciav d` therewith assume the position shown in 12, causing arm11 to pushon link 16, when the throwout v68 through its cam actionagainst bearing 18 will engage the teeth61 of said bearing with, thesprocket 13 and thereby rotate sprocket 12 which -drives the seedershaft y28 through chain 2|. It will be understood that the plows may beadjusted to any depth desired without necessitating the adjustment ofthelinkage or any other parts of the clutch '.ust referred to. As theimplement reaches the end of a row the operator againfpulls on ropes 26,28, when the intermittent clutches become locked to the carrying wheels,and the tools are elevated from the ground, while the seeder shaft drivemechanism is declutched from the main drive shaft in the l mannerdescribed and so maintained until it is "again desired to lower thetools into working position.

`by`4 -otation of shaft 33 the cam 5| and parts assowell known, would besuspended while the plow With machines commonly employed dimculty isfrequently experienced when traveling over intermittent clutch securedto the axle, a shaftl in the clutch terminating at its outer end in acessation of operation'of the seeder mechanism rough or furrowed ileldsby the loss of traction wheel support and at its inner end in acranksurface for the main drivewheel, as 23, causing arm, a lever havingan arm extending into the at intervals, with the result that unseededspots mechanism supported on the implement includare left in the eld,andin very rough elds such ling a clutch, a throw-out for the latterclutch lack of seed deposit is highly objectionable behaving an arm,sprockets associated with the clutch, a sprocket on the clutch, seeddriving cause of the frequency of such spots.- It will be understoodthat as the implement travels across a field the depth of plowpenetration is determined by the carrying wheels, and, for example,

clutch of said mechanism, a drive chain connecting the first mentionedsprocketl with one of said sprockets forming part of the seed drivingmechanism, a seeder shaft connected to and driven by should wheel, as23, enter an abrupt depression `oneof the clutch sprockets of the seeddriving the near plow 8 penetrating the ground,`would mechanism, a linkconnecting. the clutch throwcarry the entire weight of that side of theimpleout and said lever, a bell-crank 'mounted on the ment, as suchwheel, forming partl of implements frame, self-adjusting meansconnecting the t l crank-arm to the bell-crank, and a lever con must diginto the ground until the wheel again nected to the bell-crank for'controlling the latter. contacts therewith to obtain traction, suchwheel 3. `In an implement of the class described havbeing nonrotatablewhen in suspension, and ing a frame, beams secured to the frame andwhich renders theeeding mechanism inoperable. having plows thereon,Aseeding mechanism in- In existing implementsa link, as 31, has been atcliiding a clutch secured to the frame, means tached to an adjustingshaft 40 in such manner for vertically adjusting the frame to positionthe that the .Wi'fleelaasy 23;, could not be moved verplows and seedingmechanism vin relation to the ticallywithout adjustment 0f Said Shaft.In Our earth, an axle pivotally ,mounted on the frame, improvedconstruction when the implement is in auf intermittent clutch supportedby the axle, a

vtransport or operating in a ield the wheel 23 carries theentieweigiitof its side oimennplement, which causes `the end 39 of`bell-crank 40 shaft in the clutchterminating at its outer end in awheel support', a wheel on the support, means connecting the latterclutch to the clutch of the `crank dlifpermits the wheel 23 to closelyfollow ing mechanism;

the seeder mechanism drive shaft.

to be positioned inthe lower end of slot 38 ,as r seeding mechanism fordriving the latter, a linkshown in Fig. 5` ASthe implement travels. withage system on the implement frame connected to the plows in operatingposition, and wheel 23 DeSSeS intO e depreSSiOn. indicated in Fi8- 6,ythe the linkage to engage and disengage the latter slotted connection0f the links 36, 31. With bellclutch for controlling the operation ofthe seedthe contour of such ldepression Without Prever!` 4. In animplement of the class described, a tion'by the plows or implements ortrame thereframe, beams Suppgrted by the frame and hav- 0f, in Whichmanner the wheel is in constant ing plows thereon, an axle, a clutchsecured to traction for the PnlDOSe' Inentfned. and, it. Will the axle,ashaft in the clutch including wheelbe understood, that aslotted link as36--31 is only ,used With the master Wheel'svniwhich'actites arm at itsinner end, means 'connecting the Y crank-arm to the frame, a linkagesystem con- Of the chrneciing the ciutcii to the frame, means for nc- Itis also common inl implements f acter disclosed to employ disks il forcovering mating the linkage to disengage the c1utchwhere the depositedSeedsiwhich .disks are 11511311? urged by its shaft and crank-arm willrock to verti- 45 into theground-by' desired Spring errengement callyadjust-the frame and parts carried therethe intermittent clutch, andmeans for actuating supporting means at its outer end anda'crankforcontrolling the disksto follow ground irregufiarities, 'but insome conditions it. is desirable tofixedly lock the disksso that theywill be posi-" tively positioned, `which `we accomplish. by prog vidinga series of holes 9Q'in bracket 9, adapted to register with'va hole I2in the supporting `arm I2, through one of which holes a. bolt o r pinmay be inserted to securely lock the covering disks in predeterminedposition.

We vclainias our invention: l 1. Infanimplementv of the class describedhaving airtime, theI combination, with ine frame, .of

the clutch on said driving shaft, and means en-v gaglng said clutchesfor declutching the clutch `on saidldrlving shaft when theplows areremoved from earth engagement whereby (the seed- I'ing mechanism isrendered inoperative.

5. In an implement of the class describedl including plowing means, seeddropping means and a-i'rame, a crank-axle pivotally connected acrankaxlenivotally connected tothe trame. a to the frame-.aniniermiitentciiitch mounted on Clutch 0n the axle including aSprocket,`a shaft the axle and having a shaft, a drive wheel on inthe-clutch; a drive wheel on the outer end of the outer end/of theshaft, a crank-arm on the androtatable with theV cl tch, an arm on theinner-end of the shaft, lal slotted link connected to the arm, abell-crank mounted on the frame and connected to lthe link in slidingrelation to the latter, and lever connected to the bell-crank forac'tlating the latter and thelinkJ whereby means connected to theintermittent clutch, and

ing a frame', the, combination, with the frame, o r

a crank-axle pivotally connected .to the frame', ,an-

innerend of the shaft, a vertically adjustable link 'connected to thecrank-arm, a sprocket on the clutch, `seeding mechanism on the frameembodying a clutch, means connecting the sprocket "t6 the seeding meansfor actuating the latter, and

.to theclutch. of -the seeding means for resumingactuation of the latterwhen the plows are-adjust -ed into the ground.

` SIMEON B. HENDRICKS.`

rJCI-nfl"MLMARHIL. t

